Dear SimFDR, I read on this forum that you have updated the product to work with Prepar3d v.4. However,We continue to receive this error below, even though the sim software is running: I can't find a SimFDR manual online or on the website. Any assistance would be appreciated. We hope to use your product in the near future as we develop ways to study pilot safety using virtual research methods with social distancing policies. p.s.We still get this message once all the flight planning details, such as aircraft type and "Departing from.." are filled in on your GUI.